Feed intake, digestibility and N balance of goats fed Paper mulberry (Broussonetia papyrifera) or Muntingia (Muntingia calabura) foliages supplemented with NPN from potassium nitrate or urea

摘要

Fourweanedfemalegoats,nbsp;withaninitialbodyweightof10±0.5kgand4-5monthsofage,wereassignedto4treatmentsona2*2factorialdesignina4*4Latinsquare.Thetreatmentswere:foliagesofPapermulberryorMuntingiaandpotassiumnitrateorureaasthesourceofNPN.nbsp;DMintakewashigherforPapermulberrythanMuntingiabutwasnotaffectedbyNPNsource.CoefficientsofapparentdigestibilityofOMandcrudeprotein,andNretention,werehigherforPapermulberrythanMuntingiabutwerenotaffectedbyNPNsource.NretentionaspercentofNdigesteddidnotdifferbetweenthetwofoliages,implyingthatdigestibilityofthecrudeprotein,ratherthanitsbiologicalvalue,wasthereasonforthesuperiorityofthePapermulberryasafeedforgoats.nbsp;